已知函数f(x)=ax2+bx+c(a>0,b∈R,f(x)=ax2+bx+c(a>0,b∈R,c∈R)(1)若函数f(x)的最小值是f(-1)=0,且c=1,F(x)=f(x)x>0,-f(x)x<0,求F(2)+F(-2)的值(2)若a=1,c=0,且绝对值f(x)≤1在区间(0,1】恒成立,试求b取值

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